Sorry, I am total JS noob.
I just can tell you does it work in Ruby:
Mixins are not multiple inheritance. They are appending to the Class
tree between the current class and it's parent class.
Let's say that Person extends Model with mixins Cached and
ActivitySpawner:
Model has method #save:
save: function() { // query DB }
Cached has method #save:
save: function() { this.parent(); Cache.persist(this)}
ActivitySpawner has also method #save:
save: function() {this.parent(); new Activity(this, "new object
created");}
And User also have it:
save: function() {this.parent(); new ActivationEmail(this.email);}
In this case
Class | save method parent
Model | none
Cached | Model#save
ActivitySpawner | Cached#save
Person | ActivitySpawner#save
Sure, the order of mixins make sense. But in fact in this example I
don't care about the order - I just want all 'on Save' things to be
done.
On Apr 16, 9:59 pm, Fábio M. Costa <[email protected]> wrote:
> Yeah you can just access the parent function from the Extended Class. Thats
> the intended behavior.
> I mean who's the parent of who if you mix 2 classes that have the same
> method names?
> I'm confused now.
>
> --
> Fábio Miranda Costa
> Solucione Sistemas
> Engenheiro de interfaces
>
>
>
> On Fri, Apr 16, 2010 at 3:56 PM, Bogdan Gusiev <[email protected]> wrote:
>
> > "if (this.parent)" doesn't work for me. It is always defined.
>
> > I will try to describe the whole situation:
>
> > I have two mixins for the Widget class:
> > Animated is responding for animation.
> > Stateful is doing widget state control.
>
> > Both of them have show() and hide() methods.
> > But these mixins are independent from each other and I want to be able
> > to use them one by one and together.
>
> > In addition, it's sad that 'parent' is inaccessible in class mixed up
> > with 'Implements'.
>
> > On Apr 16, 8:30 pm, Fábio M. Costa <[email protected]> wrote:
> > > Could you explain why you need this?
> > > It makes little sense to me.
> > > Anyway you can do:
>
> > > if (this.parent) this.parent();
>
> > > --
> > > Fábio Miranda Costa
> > > Solucione Sistemas
> > > Engenheiro de interfaces
>
> > > On Fri, Apr 16, 2010 at 1:07 PM, Bogdan Gusiev <[email protected]>
> > wrote:
> > > > Good morning JS geeks,
>
> > > > Can somebody advice is there a way to check if class method exists in
> > > > Extended class?
>
> > > > Like:
>
> > > > new Class({
>
> > > > Extends: UnknownClass,
>
> > > > show: function() {
> > > > if (this.hasParent()) {
> > > > this.parent();
> > > > }
> > > > this.doSomethingElse();
> > > > }
>
> > > > });
>
> > > > --
> > > > Subscription settings:
> > > >http://groups.google.com/group/mootools-users/subscribe?hl=en
